Dual‐Release Free Iron and Breakdown of Ferroptosis Defenses to Achieve Ferroptosis Cascade Storms for Potent Antitumor Therapy
Wenting Xu,
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Yuzhen Yang,
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Lijuan Liu
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et al.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 19, 2025
Abstract
Ferroptosis
is
a
newly
identified
type
of
regulated
cell
death
characterized
by
iron‐dependent
lipid
peroxidation.
Among
the
main
ferroptosis‐suppressing
systems,
dihydroorotate
dehydrogenase
(DHODH)‐
ubiquinone
axis
closely
related
to
mitochondria
and
energy
metabolism,
implying
that
protects
cells
from
oxidative
stress
damage
via
maintenance
redox
homeostasis.
However,
ferroptosis
initiation
requires
suitable
environment
breakthrough
in
homeostatic
limitations
systems.
Hence,
nanoparticles
are
rationally
engineered
achieve
efficient
induction
releasing
dual‐release
free
iron
disrupting
Atovaquone
(ATO)‐loaded
hollow
mesoporous
etching
zeolitic
imidazolate
framework‐67
double‐coated
oxide/calcium
phosphate
(Fe
3
O
4
/CaP)
conjugated
with
polyethylene
glycol.
The
external
Fe
/CaP
structure
enhances
efficiency
multiple
reactive
oxygen
species
(ROS)
generation
promoting
stress.
Still,
it
achieves
increase
content
unstable
pools
for
igniting
ROS
storm
peroxidation
spark.
release
ATO
not
only
affects
metabolism
mitochondrial
respiratory
chain
binding
complex
III
but
also
downregulates
DHODH
restrict
ubiquinol
system
disrupt
Therefore,
design
this
composite
nanomedicine
provides
an
approach
inducing
theoretical
basis
clinical
anti‐tumor
trials.
Language: Английский
Mitochondrial Dysfunction‐Evoked DHODH Acetylation is Involved in Renal Cell Ferroptosis during Cisplatin‐Induced Acute Kidney Injury
Nannan Liang,
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Yue‐Yue Guo,
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Xiaoyi Zhang
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et al.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(43)
Published: Sept. 20, 2024
Several
studies
have
observed
renal
cell
ferroptosis
during
cisplatin-induced
acute
kidney
injury
(AKI).
However,
the
mechanism
is
not
completely
clear.
In
this
study,
oxidized
arachidonic
acid
(AA)
metabolites
are
increased
in
cisplatin-treated
HK-2
cells.
Targeted
metabolomics
showed
that
end
product
of
pyrimidine
biosynthesis
decreased
and
initiating
substrate
mouse
kidneys.
Mitochondrial
DHODH,
a
key
enzyme
for
synthesis,
its
downstream
CoQH2,
downregulated.
DHODH
overexpression
attenuated
but
silence
exacerbated
CoQH2
depletion
lipid
peroxidation.
Mechanistically,
acetylation
elevated
cisplatin-exposed
mice.
SIRT3
reduced
kidneys
Both
vitro
vivo
NMN
supplementation
mitochondrial
ferroptosis.
By
contrast,
Sirt3
knockout
aggravated
ferroptosis,
which
can
be
by
NMN.
Additional
experiments
cisplatin
caused
dysfunction
SUMOylation.
Pretreatment
with
mitochondria-target
antioxidant
MitoQ
alleviated
cisplatin-caused
dysfunction,
SUMOylation,
acetylation.
pretreatment
protected
against
AKI
Taken
together,
these
results
suggest
dysfunction-evoked
partially
contributes
to
AKI.
Language: Английский
5β-hydroxycostic acid from Laggera alata ameliorates sepsis-associated acute kidney injury through its anti-inflammatory and anti-ferroptosis effects via NF-κB and MAPK pathways
Qing Li,
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Xue Shi,
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Hong Huang
No information about this author
et al.
Journal of Ethnopharmacology,
Journal Year:
2025,
Volume and Issue:
unknown, P. 119359 - 119359
Published: Jan. 1, 2025
Language: Английский
Protein‐Interference‐Free and Kidney‐Targeting NIR Fluorophores for Accurate in Vivo Imaging of H2S2 during Kidney Ferroptosis
Zhangkang Lv,
No information about this author
Jing Wang,
No information about this author
Jinyuan Xu
No information about this author
et al.
Advanced Healthcare Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 24, 2025
High-fidelity
kidney
function
imaging
is
important
for
assessing
the
nephrotoxicity
of
drugs
and
diagnosing
renal
diseases.
However,
current
challenges
in
achieving
accurate
include
unspecific
signal
enhancement
due
to
albumin
binding
relatively
low
distribution
agents
kidneys.
Here,
first
time,
a
side-chain
engineering
strategy
that
incorporates
hydrophilic
six-membered
heterocycles
into
aza-hemicyanine
generating
high-performance
with
protein-interference-free
kidney-targeting
features
proposed.
Based
on
these
unique
dyes,
albumin-insensitive
H2S2
near-infrared
(NIR)
fluorescent
probe
NA-H2S2
designed,
which
demonstrates
effective
following
intravenous
injection
specifically
activated
by
H2S2.
The
designed
presents
highly
rapid,
selective
sensitive
response
detection
limit
as
24.21
nm.
Additionally,
it
successfully
achieves
real-time
vivo
NIR
fluorescence
during
erastin/cisplatin
induced
ferroptosis.
Moreover,
also
enables
rapid
through
vitro
optical
urinalysis,
offering
significant
diagnostic
value
Overall,
this
study
not
only
practical
increased
accuracy
but
provides
promising
dyes
further
development
disease-related
probes.
Language: Английский
From bench to bedside: targeting ferroptosis and mitochondrial damage in the treatment of diabetic cardiomyopathy
Bin Liu,
No information about this author
Qing Jin,
No information about this author
Yi Sun
No information about this author
et al.
Frontiers in Endocrinology,
Journal Year:
2025,
Volume and Issue:
16
Published: April 25, 2025
Diabetic
cardiomyopathy
(DCM)
is
a
common
and
fatal
cardiac
complication
caused
by
diabetes,
with
its
pathogenesis
involving
various
forms
of
cell
death
mitochondrial
dysfunction,
particularly
ferroptosis
injury.
Recent
studies
have
indicated
that
damage
play
crucial
roles
in
the
onset
progression
DCM,
though
their
precise
regulatory
mechanisms
remain
unclear.
Of
particular
interest
interaction
between
damage,
as
well
synergistic
effects,
which
are
not
fully
understood.
This
review
summarizes
injury
DCM
explores
molecular
involved,
an
emphasis
on
interplay
these
two
processes.
Additionally,
article
offers
overview
targeted
drugs
shown
to
be
effective
cellular
experiments,
animal
models,
clinical
trials,
analyzing
action
potential
side
effects.
The
goal
provide
insights
for
future
drug
development
applications.
Moreover,
challenges
prospects
multi-target
combination
therapies
personalized
medicine
interventions
practice
offer
strategic
guidance
comprehensive
prevention
management
DCM.
Language: Английский